Week 3 Venipuncture Skills Training Flashcards Preview

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Flashcards in Week 3 Venipuncture Skills Training Deck (13)
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1
Q

what are four indication for blood draw?

A

amount of cells, chemistry levels, drug levels, infection

2
Q

what are some complications to blood draw? 5

A

bruising/hematoma, infections, arterial puncture, limb precautions, hemolysis

3
Q

To limit/prevent bruising what can you do?

A
  1. dont leave tourniquet on for more than a minute
  2. remove tourniquet as last tube is filling
  3. remove specimen tube
  4. retract needle apropriately
4
Q

what causes hemolysis during blood draw? 2

A

improper specimen handling, needle size too small (use 21 G or 23 G)

5
Q

what is the function of the tourniquot?

A

blocks venous return to heart causing veins to dilate

6
Q

what is the rationale for leaving the tourniquet on for less than one minute?

A

prevents formation of hematoma which would cause erroneously high lab values

7
Q

what are the types of needle used in blood draw?

A

direct draw needle and butterfly needle

8
Q

where can the two type of needles be used?

A

direct draw: only in the antecubital region

butterfly needle: used anywhere

9
Q

what is the best site for blood draw?

A

median cubital

10
Q

what are three obsolete techniques of blood draw

A

taping the vein, having the patient pump fist, blind sticking

11
Q

how should the needle be when you draw blood? angle? bevel?

A

15-30 degrees with bevel up

12
Q

if using a butterfly needle what must you use?

A

a discard tube to clear air from the needle’s tubing

13
Q

when you are ready to remove the needle what are the steps:

A
  1. remove tourniquet,
  2. remove last specimen tube
  3. retract needle (in order)

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